Đến UI Ball

Tại đây có khá ít hiệu ứng, nhưng cái nào cũng có chất lượng rất cao. Bạn chỉ cần chọn hiệu ứng, tùy chỉnh rồi bấm nút Source để lấy mã. Bạn có thể áp dụng trang Preload.

• Tạo hiệu ứng Chờ tải trang (Preload)

Ví dụ:

<div class="ui-ball-container">
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
    <div class="ui-ball-dot"></div>
</div>

CSS.

.ui-ball-container {
    --uib-size: 60px;
    --uib-color: black;
    --uib-speed: 1.5s;
    --uib-dot-size: calc(var(--uib-size) * 0.1);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    height: calc(var(--uib-size) * 0.64);
    width: calc(var(--uib-size) * 0.64);
}

@keyframes jump {
    0%,
    100% {
        transform: translateY(120%);
    }

    50% {
        transform: translateY(-120%);
    }
}

.ui-ball-dot {
    --uib-d1: -0.48;
    --uib-d2: -0.4;
    --uib-d3: -0.32;
    --uib-d4: -0.24;
    --uib-d5: -0.16;
    --uib-d6: -0.08;
    --uib-d7: -0;
    position: absolute;
    bottom: calc(var(--uib-bottom) + var(--uib-dot-size) / 2);
    right: calc(var(--uib-right) + var(--uib-dot-size) / 2);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    height: var(--uib-dot-size);
    width: var(--uib-dot-size);
    animation: jump var(--uib-speed) ease-in-out infinite;
    opacity: var(--uib-scale);
    will-change: transform;
    backface-visibility: hidden;
}

.ui-ball-dot::before {
    content: "";
    height: 100%;
    width: 100%;
    background-color: var(--uib-color);
    border-radius: 50%;
    transform: scale(var(--uib-scale));
    transition: background-color 0.3s ease;
}

.ui-ball-dot:nth-child(1) {
    --uib-bottom: 24%;
    --uib-right: -35%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d1));
}
.ui-ball-dot:nth-child(2) {
    --uib-bottom: 16%;
    --uib-right: -6%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d2));
}
.ui-ball-dot:nth-child(3) {
    --uib-bottom: 8%;
    --uib-right: 23%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d3));
}
.ui-ball-dot:nth-child(4) {
    --uib-bottom: -1%;
    --uib-right: 51%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d4));
}
.ui-ball-dot:nth-child(5) {
    --uib-bottom: 38%;
    --uib-right: -17.5%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d2));
}
.ui-ball-dot:nth-child(6) {
    --uib-bottom: 30%;
    --uib-right: 10%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d3));
}
.ui-ball-dot:nth-child(7) {
    --uib-bottom: 22%;
    --uib-right: 39%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d4));
}
.ui-ball-dot:nth-child(8) {
    --uib-bottom: 14%;
    --uib-right: 67%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d5));
}
.ui-ball-dot:nth-child(9) {
    --uib-bottom: 53%;
    --uib-right: -0.8%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d3));
}
.ui-ball-dot:nth-child(10) {
    --uib-bottom: 44.5%;
    --uib-right: 27%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d4));
}
.ui-ball-dot:nth-child(11) {
    --uib-bottom: 36%;
    --uib-right: 55.7%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d5));
}
.ui-ball-dot:nth-child(12) {
    --uib-bottom: 28.7%;
    --uib-right: 84.3%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d6));
}
.ui-ball-dot:nth-child(13) {
    --uib-bottom: 66.8%;
    --uib-right: 15%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d4));
}
.ui-ball-dot:nth-child(14) {
    --uib-bottom: 58.8%;
    --uib-right: 43%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d5));
}
.ui-ball-dot:nth-child(15) {
    --uib-bottom: 50%;
    --uib-right: 72%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d6));
}
.ui-ball-dot:nth-child(16) {
    --uib-bottom: 42%;
    --uib-right: 100%;
    animation-delay: calc(var(--uib-speed) * var(--uib-d7));
}

.ui-ball-dot:nth-child(3) {
    --uib-scale: 0.98;
}
.ui-ball-dot:nth-child(2),
.ui-ball-dot:nth-child(8) {
    --uib-scale: 0.96;
}
.ui-ball-dot:nth-child(1),
.ui-ball-dot:nth-child(7) {
    --uib-scale: 0.94;
}
.ui-ball-dot:nth-child(6),
.ui-ball-dot:nth-child(12) {
    --uib-scale: 0.92;
}
.ui-ball-dot:nth-child(5),
.ui-ball-dot:nth-child(11) {
    --uib-scale: 0.9;
}
.ui-ball-dot:nth-child(10),
.ui-ball-dot:nth-child(16) {
    --uib-scale: 0.88;
}
.ui-ball-dot:nth-child(9),
.ui-ball-dot:nth-child(15) {
    --uib-scale: 0.86;
}
.ui-ball-dot:nth-child(14) {
    --uib-scale: 0.84;
}
.ui-ball-dot:nth-child(13) {
    --uib-scale: 0.82;
}

Ta được.

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